On 05/08/2014 07:44 PM, ChenLiang wrote: > Hi, > I have test the patch at the qemu.git, qemu crashed when vm is booting. > > the backtrace is: > > Program received signal SIGABRT, Aborted. > [Switching to Thread 0x7f6bf67f9700 (LWP 9740)] > 0x00007f6bfacb2b55 in raise () from /lib64/libc.so.6 > (gdb) bt > #0 0x00007f6bfacb2b55 in raise () from /lib64/libc.so.6 > #1 0x00007f6bfacb4131 in abort () from /lib64/libc.so.6 > #2 0x00007f6bfd51047c in kvm_io_ioeventfd_del (listener= > 0x7f6bfd9ffee0 <kvm_io_listener>, section=0x7f6bf67f87c0, > match_data=true, data= > 0, e=0x7f6970000930) at /tmp/qemu/kvm-all.c:879 > #3 0x00007f6bfd5163b5 in address_space_add_del_ioeventfds (as= > 0x7f6bfde3d6e0 <address_space_io>, fds_new=0x0, fds_new_nb=0, fds_old= > 0x7f6bfdfd8ce0, fds_old_nb=1) at /tmp/qemu/memory.c:628 > #4 0x00007f6bfd51698e in address_space_update_ioeventfds (as= > 0x7f6bfde3d6e0 <address_space_io>) at /tmp/qemu/memory.c:687 > #5 0x00007f6bfd517949 in address_space_update_topology (as= > 0x7f6bfde3d6e0 <address_space_io>) at /tmp/qemu/memory.c:780 > #6 0x00007f6bfd517a68 in memory_region_transaction_commit () > at /tmp/qemu/memory.c:800 > #7 0x00007f6bfd3e2942 in virtio_pci_stop_ioeventfd (proxy=0x7f6bfdfde080) > at hw/virtio/virtio-pci.c:270
Hah...I attached gdb to the source qemu this time and got basically the same thing. This is with the stable-1.4 branch plus the patch, using "-machine accel=kvm". #0 0x00007f4e08e1e9e9 in raise () from /lib64/libc.so.6 #1 0x00007f4e08e200f8 in abort () from /lib64/libc.so.6 #2 0x00007f4e0b30e8a4 in kvm_io_ioeventfd_del (listener=<optimized out>, section=0x7f4e080f2c00, match_data=<optimized out>, data=0, e=<optimized out>) at /home/cfriesen/devel/qemu/kvm-all.c:804 #3 0x00007f4e0b311f60 in address_space_add_del_ioeventfds (fds_old_nb=64, fds_old=0x7f4df8004b40, fds_new_nb=0, fds_new=0x0, as=0x7f4e0bfb9fe0 <address_space_io>) at /home/cfriesen/devel/qemu/memory.c:603 #4 address_space_update_ioeventfds (as=0x7f4e0bfb9fe0 <address_space_io>) at /home/cfriesen/devel/qemu/memory.c:649 #5 address_space_update_topology (as=0x7f4e0bfb9fe0 <address_space_io>) at /home/cfriesen/devel/qemu/memory.c:730 #6 memory_region_transaction_commit () at /home/cfriesen/devel/qemu/memory.c:750 #7 0x00007f4e0b255cb5 in virtio_pci_stop_ioeventfd (proxy=0x7f4e0d3266a0) at hw/virtio-pci.c:259 #8 0x00007f4e0b3086d0 in virtio_vmstate_change (opaque=0x7f4e0d31c370, running=<optimized out>, state=<optimized out>) at /home/cfriesen/devel/qemu/hw/virtio.c:914 #9 0x00007f4e0b2bdf5b in vm_state_notify (running=running@entry=0, state=state@entry=RUN_STATE_FINISH_MIGRATE) at vl.c:1674 #10 0x00007f4e0b2c3f62 in do_vm_stop (state=RUN_STATE_FINISH_MIGRATE) at /home/cfriesen/devel/qemu/cpus.c:446 #11 vm_stop (state=state@entry=RUN_STATE_FINISH_MIGRATE) at /home/cfriesen/devel/qemu/cpus.c:1080 #12 0x00007f4e0b25e5c5 in buffered_file_thread (opaque=0x7f4e0b79a640 <current_migration.19392>) at migration.c:707 #13 0x00007f4e09cacc53 in start_thread () from /lib64/libpthread.so.0 #14 0x00007f4e08ededbd in clone () from /lib64/libc.so.6 Chris
